To quote: The undead in Dead Nation weren't always the dirty, shambling corpses they are now. They came from all walks of life and, even after their transformation, retain a piece of who they once were.

Watch the trailer below to see what happens when the zombie plague reaches a baseball stadium.

Dead Nation features a large variety of zombie types that reflect the locales and show the transformation of ordinary people into merciless undead killers. Check out the new screens, and stay tuned to the PlayStation.Blog as we reveal more Dead Nation details in the coming months.

Oh, and if you're in town, check out Dead Nation at Comic-Con this week!